Patent Application
20220252360
The present application claims priority of DE 20 2021 100 591.2, filed Feb. 5, 2021, the priority of this application is hereby claimed and this application is incorporated herein by reference.
The present invention first relates to an intermediate product for the production of a surface heat exchanger.
Intermediate products of this kind are known from the prior art in principle, for example from DE 10 2015 008 082 A1 by the applicant. This document describes an intermediate product which can be adhered in a retaining cassette or what is known as a “sail”, wherein the retaining cassette is in turn attached to a ceiling or wall of a building wall, for the air conditioning thereof. The side of the retaining cassette facing the inside of the room thus conceals or covers the intermediate product attached to the other side of the retaining cassette.
In this case, the intermediate product may in particular be produced at a different site from the retaining cassette and can then be brought to the installation site in order to only be adhered to the retaining cassette here.
Therefore, the intermediate product comprises a protective layer covering the adhesive layer of the intermediate product, in particular for transport.
The adhesive layer is located on the intermediate product on a first side of a support plate, wherein a tube system is fixed to the other, opposite side of the support plate, in particular by means of a heat-conducting element. A cool or heated medium later flows through the tube system when a surface heat exchanger is installed and assembled.
In the prior art, it may in principle be the case that cavities form between the adhesive layer and the protective layer, which cavities may in particular counteract a subsequent adhesive effect.
Therefore, it is also known from said prior-art document to provide an adhesive tape which already has an (integrated) protective layer, instead of a manually applied adhesive layer and a separate protective layer.
Double-sided adhesive tapes of this kind typically consist of a central support, which is coated on both sides with adhesion promoter (known as primer) in order to retain an adhesive mass on either of its sides. A corresponding, removable protective layer is then positioned on the outside of at least one of the adhesive masses.
Even if a solution of this kind has proven to be very easy to handle and advantageous in practice, a person skilled in the art is always seeking a further optimised intermediate product and surface heat exchanger.
The invention solves the stated problem by means of the intermediate product having a support plate on one side of which a tube system for conducting a medium is attached and on the other side of which prefabricated adhesive tape having a manually removable outer protective layer is arranged, wherein the adhesive tape used is free of any support.
In other words, the concept of the invention is to use what is known as a transfer adhesive tape as a prefabricated adhesive tape of an intermediate product.
Although transfer adhesive tapes of this kind are known from the prior art in principle, their use in surface heat exchangers (or at least intermediate products for the production of surface heat exchangers) is not.
Here, the applicant has found that departing from the basic teaching of using the most robust and stable possible double-sided adhesive tape comprising a support provides the essential advantage of yet further improved heat transfer between the support plate and the retaining cassette, wherein the use of a support-free transfer adhesive tape that is actually more delicate (and therefore not so stable and robust) is actually an obstacle to the primary goal of the most secure possible retention.
Extensive series of tests have, however, demonstrated that, contrary to expectations, the use of a support-free (transfer) adhesive tape is sufficiently secure and also provides considerably improved heat-conducting properties.
The heat-conducting properties of a tape of this kind are more advantageous since heat transferred between the support plate and the tube system or the retaining cassette does not have to be additionally transported through the support, layer or core.
The support-free adhesive tape also has a lower thickness overall, such that the transfer or transport path for the heat or temperature properties is also shorter and therefore optimised.
While prior-art adhesive tapes used until now therefore comprise a support made of paper, non-woven material, film, foam, composite material or similar, the adhesive tape used according to the invention advantageously merely consists of an adhesive body and a protective layer covering this on one side, for example made of (special) paper, film or similar.
In particular, a support is not provided. Advantageously, however, the adhesive tape is also free of primer.
The adhesive tape is typically in one piece and, for producing the intermediate product, can have been peeled off and detached from a roll or a corresponding stamped part in the manner of a roll, for example, or can also have been detached from a sheet, or the like.
In this sense, “prefabricated” in particular means that the adhesive tape is substantially in the form of a prepared body, preferably already comprises a protective layer and forms a unit together with said layer.
As described, this unit may previously have been detached from a roll or sheet, or the like.
Therefore, according to the invention this is a double-sided adhesive tape (also called double-faced adhesive tape) which does not comprise a support.
In particular, it is crucial that the adhesive tape, with the exception of the protective layer, is continuously adhesive, i.e. does not comprise a non-adhesive core.
This may therefore be transfer adhesive tape, which merely consists of an adhesive film together with a protective layer, or may also be foam adhesive tape, which, again with the exception of the protective layer, completely consists of adhesive mass (in the latter case, the adhesive tape may exclusively consist of foam and the protective layer or of self-adhesive foam plus additional adhesive film and the protective layer).
Adhesive tapes of the first type, i.e. those which merely comprise an adhesive film together with a protective layer, are particularly advantageous, however, since they are in particular provided with particularly good heat-conducting properties.
Merely for the sake of clarity, it is noted that, before they are added to the intermediate product, the adhesive tapes used in the intermediate product according to the invention of course can also still be provided on the other side, in addition to the outer protective layer, with another protective layer (for example in the manner of a separation layer or the like) (known as a liner), which essentially prevents adhesive tape on a roll or elsewhere from adhering to the layer thereabove. Liners of this kind can of course no longer be found in an intermediate product, since, if present, they have been peeled off before the adhesive tape has been attached to the intermediate product or adhered to the support plate.
The outer protective layer may in particular be silicone paper, since this is particularly suitable for effectively protecting the adhesive body or adhesive film and can also still be manually peeled off after a long period of time.
Merely for the sake of clarity, with regard to the protective layer, it is also noted that the protective layer can of course be formed in one piece or alternatively in multiple pieces (for example consisting of a plurality of strips arranged beside one another, or the like).
By peeling off or removing the protective layer, the adhesive body of the adhesive tape is exposed and the remainder of the intermediate product (i.e. the intermediate product without the protective layer) can then be adhered to the retaining cassette. For this purpose, the retaining cassette typically has an attachment face in its interior which is designed to be flat.
Typically, precisely one surface heat exchanger is attached in a retaining cassette in this case. In alternative embodiments, however, it is also possible to insert two or more surface heat exchangers into one retaining cassette, wherein the surface heat exchangers are preferably fluidically connected to one another in this case.
Retaining means for fastening to a wall or ceiling of a building room can be associated with the retaining cassette in a conventional manner. In addition, depending on the customer's requirements and the use, a cassette may also comprise what are known as acoustic perforations. In this sense, the cassette is not designed to be closed, but instead has perforations, which are typically arranged regularly and in a grid, on the surface thereof, i.e. in particular in the region of the attachment face. In this case, it is useful for the intermediate product to be inserted into the retaining cassette to likewise comprise congruent perforations, in any case in the region of the support plate and optionally in the region of the adhesive tape/body. In particular, the protective layer does not need to comprise these perforations, since it is removed or taken off before assembly of the surface heat exchanger.
A surface heat exchanger produced in this way is usually installed together with a plurality of identical surface heat exchangers on a ceiling or wall of a building, without joints as far as possible, in order to give a homogeneous appearance. The tube systems of the individual surface heat exchangers can be fluidically connected here, in particular also by openings in the side walls of the retaining cassette or the like.
This plurality of surface heat exchangers can also be referred to as a climate-control ceiling or climate-control wall. It is used for air conditioning the room, i.e. in particular for heating or cooling the room.
If a heating effect is desired, a hot medium, in particular water, is typically directed through the tube system. If cooling is desired, a cold medium, likewise preferably (cooled) water, is directed therethrough. The tubes in particular consist of copper here, but may also consist of any other suitable metal or another material, such as a suitable plastics material. Typically, the tubes of a single surface heat exchanger have a meandering shape here, i.e. they consist of straight portions and curved portions. Advantageously, the straight portions have a D shape in cross section and the round portions have a circular shape in cross section.
The tube system is typically fastened to the support plate by means of heat-conducting sheets, which are either adhered to the support plate (preferably likewise by support-free adhesive tape) or fastened thereto in another, in particular mechanical, manner (e.g. in an interlocking manner). In particular, a plurality of strip-like heat-conducting sheets may be provided, which are also in particular associated with the straight tube portions and engage over said tube portions so as to be fastened on either side or at least on one side.
In order to install the surface heat exchanger, as already described, the protective layer can be removed from the intermediate product and said product can then be manually adhered, in particular by applying pressure, to the attachment face of the retaining cassette over its entire surface and fully.
The retaining cassette typically consists of metal or steel and may in particular also be magnetic. It is also referred to as a sail and the heat exchanger using it is also referred to as a heat exchanger of the cassette type. The heat-conducting sheet(s) generally consist(s) of materials having good heat-conducting properties, such that a heat-conducting function is in particular provided in order to transfer the temperature of the medium to the support plate. In addition to this heat-conducting function, the heat-conducting sheet of course also has the function of fixing the tube system (or a portion of the tube system) and simultaneously pressing on the support plate with constant tension. Therefore, the heat-conducting sheet is typically made of spring-hard metal.
Owing to the in particular at least 3 mm thick metal support plate (steel can optionally also be used), the temperature can be transferred in a more optimised manner. Preferably, the metal support plate has a thickness of at least 0.5 mm and more preferably of at least 0.6 mm. Metal sheets that are too thin, as are known for example from the different field of refrigerator technology, cannot be used, since on one hand they bend easily and on the other hand they do not allow for proper heat transfer, and this is, however, particularly important in surface heat exchangers from the field of building air conditioning.
In the surface heat exchanger that is used and assembled in the present case, the support plate, together with the tube system and the heat-conducting sheet, is associated with the inner face of the cassette facing away from the room.
According to a particularly advantageous embodiment of the method according to the invention, the support plate consists of aluminium, which allows for particularly good thermal conductivity.
According to another advantageous embodiment of the method according to the invention, the outer protective layer, which covers the adhesive layer, is provided in the form of a film or sheet and can be peeled off manually without tools. The protective layer may thus be a film or may also be a piece of (silicone) paper or the like which is suitable for being manually peeled off the adhesive body of the adhesive tape.
Advantageously, it is provided that the protective layer comprises a peel-off face or grip face. In the simplest case, this peel-off face may be the rear side of the protective layer, behind which a finger nail can engage, for example. In this sense, the protective layer can be easily peeled off and then engaged from behind at a corner, for example. Advantageously, however, it may also alternatively be provided that the protective layer protrudes slightly beyond the adhesive body in order to provide the user with a grip face. Alternatively, however, the protective layer may of course also provide a separate tab, in particular in a corner region, which makes it easier to peel off or remove the protective layer.
According to a particularly advantageous embodiment of the invention, after removal of the protective layer, the support plate is black in appearance on its side having the adhesive layer. This provides visual advantages, in particular if the support plate together with the tube system (i.e. the remainder of the intermediate product once the protective film is peeled off) is intended to be directly adhered to the retaining cassette (i.e. without a black non-woven material therebetween).
This embodiment of the invention is suitable in particular for cases in which the retaining cassette is not closed in the region of its attachment face, but is perforated, and non-woven material is not used, as described. The effect of a black colour may be achieved here by a separate layer underneath a transparent adhesive tape, for example. Alternatively, however, a black-coloured adhesive tape can of course also be used.
According to another advantageous embodiment of the invention, the retaining cassette has a width and a length of respectively at least 50 cm. Retaining cassettes having smaller dimensions have proven to be unsuitable for the installation, in particular for visual reasons but also for reasons of ease of installation and stability.
Typical retaining cassettes have a width and a length of approximately 60 cm. Alternative, non-square retaining cassettes oriented in a somewhat elongate manner may have dimensions of 60×120 cm, for example.
In order to be inserted into retaining cassettes having these dimensions, the support plates of the intermediate product typically have dimensions having edge lengths of approximately 30 to 120 cm. Typically, the edge length of the corresponding support plate must be at least somewhat smaller than the edge length of the retaining cassette, such that the support plate and therefore the remainder of the intermediate product after peeling off the protective layer can be inserted into the retaining cassette without any problems.
Typical support plates have dimensions of 30×30 cm to 50×50 cm, for example. For larger sails, however, larger support plates can of course also be provided. Both edge lengths are, however, typically at least 20 cm or 30 cm, but typically probably do not exceed 250 cm in length/width.
In particular, after removal of the protective layer, the intermediate product is adhered to the attachment face undeformed. In this sense, after removal of the protective layer, this is in fact, strictly speaking, not the intermediate product, but rather the remainder of the intermediate product. For the sake of comprehension, however, this will (just) be referred to as an intermediate product in this case. In any case, the remainder of the intermediate product or the support plate is adhered to the attachment face undeformed, such that, for example, the support plate is not bent, angled or the like for this purpose. Owing to the greater material thickness, this is also generally not even possible. Since the support plate together with the adhesive body of the adhesive tape extends substantially along a plane, the support plate is also adhered to the planar attachment face substantially along a plane.
Preferably, the remainder of the intermediate product is adhered to the attachment face substantially over its entire surface, wherein it is possible, for example, to provide that the adhesive body is attached to the support plate continuously and without gaps.
Alternatively, the adhesive body of the adhesive tape may however also comprise perforations or the like, in particular if perforations are likewise provided either in the attachment face of the retaining cassette and/or on the support plate. Within the meaning of the present invention, however, this is still considered to be substantially over the entire surface. This is in particular understood to mean that the adhesion is not just carried out at points.
According to the invention, it may be advantageous for the support plate to only comprise a substantially continuous adhesive body on one side for this purpose. A continuous adhesive body is therefore not provided on the other side, associated with the tube system. Although the heat-conducting sheets can be fastened to the other side using adhesive or adhesive tape, this is generally only in a strip-like manner and not continuously.
According to the invention, the side of the intermediate product or the remainder of the intermediate product comprising the adhesive layer is preferably adhered plane parallel with the attachment face. In this sense, two faces, which substantially extend along a parallel plane, namely the attachment face and the adhesive tape or the underside of the support plate, are moved towards one another in as parallel a manner as possible such that the two planes come to lie on top of one another. A user can then help the two faces to adhere manually by applying pressure.
Advantageously, both said side of the intermediate product and/or said side of the support plate and the attachment face do not comprise any recesses for this purpose, although minor perforations, in particular grid-shaped acoustic perforations, can be provided. Recesses in the sense that either the attachment face or the support plate comprises regions in the manner of deep-drawn, set-back regions would, however, probably not allow for full adhesion.
According to another, particularly advantageous embodiment of the invention, the adhesive tape is substantially free of cavities in the region between the protective layer and the adhesive body.
This is in particular intended to constitute a distinction from a manually attached adhesive layer disclosed in the prior art, which is then provided with a separate protective layer. Here, the surface of the adhesive layer may namely in particular be inhomogeneous and the planar or smooth protective layer may not cling to the adhesive layer in a planar manner, meaning that said cavities develop.
The invention therefore provides the advantage that a prefabricated adhesive tape is used in which cavities of this kind can be eliminated from the outset.
Here, “substantially free of cavities” means that there are no relevant cavities. In the microscopic sense, cavities may potentially be detected all over, but these are not what is meant. Instead, cavities are meant which can develop when there are separate adhesive layers that are attached manually or using a machine and are provided with a separate protective layer.
In this sense, the region between the protective layer and the adhesive body can be free of cavities.
According to the most preferred embodiment of the invention, the adhesive tape consists of the protective layer and the adhesive body. It therefore neither comprises a support nor a primer or the like.
The adhesive body preferably has a thickness of less than 0.1 mm, more preferably of less than 0.07 mm, for example of 0.06 mm.
The adhesive body preferably has a thickness of greater than 0.01 mm, more preferably of greater than 0.05 mm.
More advantageously, the adhesive body may comprise or consist of acrylate adhesive. This may in particular be modified acrylate.
According to another embodiment, the adhesive body may also comprise or consist of foam. The adhesive body may in particular be acrylate foam, which is in particular designed to be continuously adhesive.
According to the most advantageous embodiment of the invention, the adhesive tape is designed as what is known as a transfer adhesive tape. This can in particular be understood to be a distinction from a double-sided adhesive tape comprising a support, as used in the prior art.
Overall, the adhesive tape may in particular have a total thickness of less than 0.2 mm, preferably of less than 0.15 mm, for example of approximately 0.14 mm.
The total thickness may preferably be greater than 0.1 mm.
In this sense, it can therefore be established that, according to the most preferred embodiment of the invention, the adhesive body can have a lower thickness than the protective layer.
According to the invention, the intermediate product may be designed such that exactly one prefabricated adhesive tape is provided on the side of the support plate on which the adhesive tape is arranged.
Alternatively, however, a plurality of, i.e. at least two, adhesive tapes may also of course be provided instead, for example provided that they are strip-shaped (and arranged beside one another).
According to a second aspect of the invention, the problem addressed is solved by a surface heat exchanger having an intermediate product comprising a support plate on one side of which a tube system for conducting a medium is attached and on the other side of which a prefabricated adhesive tape is arranged, which attaches the support plate in or on a retaining cassette, wherein the adhesive tape is free of any support.
In other words, this aspect of the invention relates to a surface heat exchanger in which an intermediate product according to the invention is adhesively bonded into a retaining cassette, of course once the protective layer has been removed.
The adhesive tape according to the invention therefore in particular does not comprise (or no longer comprises) a protective layer.
According to another aspect of the invention, the problem is solved by a surface heat exchanger in which the heat-conducting element is indirectly or directly attached to the support plate by means of a support-free adhesive tape. Also according to this aspect, the adhesive tape does not comprise (or no longer comprises) an outer protective layer.
The heat-conducting element may in particular be a heat-conducting sheet which is adhered to the support plate by a support-free adhesive tape or strip. In this case, the heat-conducting sheet may be directly adhered to the support plate or, for example, to a layer arranged thereon, in particular made of non-woven material.
Furthermore, the problem addressed by the invention is also solved by a surface heat exchanger in which both the adhesive tape for attaching the support plate in or on a retaining cassette and the adhesive tape for attaching the heat-conducting element to the support plate are designed as a support-free adhesive tape.
Therefore, both adhesive tapes can come from the same source, i.e. in particular the same roll, sheet or supply, or the like, and in particular can have an identical construction and/or an identical thickness.
Lastly, the problem addressed by the invention is also solved by a surface heat exchanger having an adhesive tape which attaches an outer decorative layer to the support plate is free of any support.
According to this aspect of the invention, the concept of the invention consists in an intermediate product being provided with a decorative layer after removing the protective layer (in the region from which the protective layer has been removed). The decorative layer is therefore in particular attached to the support plate by means of the support-free adhesive tape.
In this way, an intermediate product modified in such a way can be used directly as a surface heat exchanger (in particular inserted into an additional retaining cassette without the support plate).
This is in particular a non-metal decorative layer here.
In other words, the decorated support plate is used directly as a surface heat exchanger.
A surface heat exchanger provided in such a way is already sufficiently decorative in itself and therefore does not need to be additionally provided with plasterboard and/or filled.
Because a non-metal decorative layer is selected, the look can be sufficiently contrasted with the partially dull metal look of conventional metal cassettes.
Components can also be saved, since, in addition to the support plate, another, metal retaining cassette is not required.
In addition, however, this aspect of the invention can also cover the fact that the support plate is provided by a (conventional) retaining cassette.
According to the invention, the decorative layer is arranged on the outside of the surface heat exchanger, i.e. it constitutes an outer layer of the surface heat exchanger.
Therefore, the decorative layer is arranged such that an observer's view primarily falls on the decorative layer, at least in a possible viewing direction.
This effect is utilised to install the surface heat exchanger in a (building) room such that the outer decorative layer points towards the interior of the room, i.e. towards an observer who is in the room.
Within the meaning of the invention, a decorative layer constitutes a layer which looks visually more appealing, in particular in contrast with a blank support plate, retaining cassette or protective layer.
Typically, metal layers of support plates or retaining cassette are often perceived as being “cold”.
The decorative layer may, however, have a more visually appealing effect, for example due to a pattern and/or its structure and/or its material selection.
In this sense, the decorative layer may for example have a pattern or a particular relief, but it does not have to. In particular, the decorative layer may have a decorative effect merely due to its structure or material.
Alternatively, the decorative layer may also be (decoratively) printed, i.e. may have a print, which may constitute a pattern (merely by way of example).
The decorative layer may typically be a flexible, flat body, i.e. for example a textile fabric or a material made of paper, cardboard, film or the like.
Particularly advantageously, the textile fabric or the decorative layer may consist of non-woven material, in particular an acoustic non-woven material, in this case.
Alternatively, however, a wallpaper, for example a textured wallpaper or a non-woven wallpaper or the like, may also be provided as the decorative layer.
In other words, the front side of the support plate can be “wallpapered” with a flat, in particular flexible, body using the support-free adhesive tape.
Advantageously, the decorative layer may provide a pattern, more advantageously a pattern which can continue onto other surface heat exchangers, which can preferably be arranged to be adjacent.
Within the meaning of the present invention, a “non-metal” design of the decorative layer means that it does not predominantly consist of metal; however, the decorative layer may contain minor metal elements, such as metal fibres.
In this case, the decorative layer may in particular consist of non-woven material, i.e. what is also known as a “non-woven”. Preferably, the decorative layer is formed by an acoustic non-woven material, which, in this case, is in particular distinguished in that it has particularly effective acoustic absorbing properties.
In this case, the decorative layer may for example have an open-perforated surface area of at least 5%, furthermore at least 10%.
With regard to the surface heat exchanger, it is noted that all the claims, features and advantages described in connection with the intermediate product are of course also transferable to said surface heat exchanger and should be considered to be disclosed in conjunction therewith. Merely for the sake of clarity, these will not be explicitly repeated at this point in conjunction with the surface heat exchanger. The same of course also applies vice versa, i.e. with regard to the advantages described in relation to the surface heat exchanger with regard to the intermediate product.
An essential difference, also in relation to the thickness of the adhesive tape, is, however, that the claims directed to the surface heat exchanger all relate to adhesive tapes in which the protective layer has already been removed or which do not comprise (or no longer comprise) a protective layer, while the main claim relates to an adhesive tape having a protective layer still affixed thereto.
Other advantages and embodiments of the invention become apparent from the dependent claims, which are not cited, and from the following description of the figures, in which:
Embodiments of the invention are described by way of example in the following description of the figures, also with reference to the drawings. Here, for the sake of clarity, even if different embodiments are involved, identical or comparable parts or elements or regions have been denoted by identical reference signs, sometimes with the addition of lower-case letters or apostrophes.
Features that are only described in relation to one embodiment can also be provided in any other embodiment of the invention within the scope of the invention. Even if they are not shown in the drawings, such amended embodiments are covered by the invention.
All the features disclosed are essential to the invention per se. The content of the disclosure of the cited documents and the prior art devices described are hereby incorporated into the disclosure of the application in their entirety, also for the purpose of incorporating individual features or a plurality of features of these documents into one or more claims of the present application.
First, the series of figures in
According to
According to
In this sense, in the present embodiment, the curved tube portions 15 are in particular not attached directly to the support plate 11, but instead are only indirectly attached via the straight portions 14 and the heat-conducting sheets 16. The heat-conducting sheets 16 are adhered to the support plate 11 (in particular on both sides of the covered tube portion). Therefore, the heat-conducting sheets may in particular be metal strips having good heat-conducting properties.
The intermediate product assembled in this way is shown in
The rear view according to
Typically, to ensure that it is easy to remove or peel off, the protective layer 17 comprises a grip face 18, which may for example be provided by a protruding film region or simply a region of the underside of the film (which is associated with the adhesive body 20).
When
Here,
With regard to
Therefore, the adhesive strip 30 can come from the same adhesive tape source as the adhesive tape 31 which is associated with the other side 19 of the support plate 11. Optionally, however, it is fabricated in a different way, for example in a strip form rather than in a sheet form, or, however, identical strips can be used on both sides of the support plate 11, and therefore typically a plurality thereof can be used on the side 19.
The finished intermediate product 10 according to
In this sense, the intermediate product denoted by reference sign 10 in
Typically, the easy-to-handle intermediate product denoted by reference sign 10 in
Here,
The intermediate product 10 shown in
In any case, according to
After removal of the protective layer 21, a black colour impression, for example, can then appear when looking at the underside of the support plate 11. This colour impression can be produced by a black-coloured adhesive body 20 of the adhesive tape 31, for example, or in an alternative embodiment (not shown), by a separate coating on the underside of the support plate 11 which would thus be arranged between the support plate 11 and the adhesive body 20, wherein a substantially transparent adhesive body has to be used in this case.
The protective layer 21 is preferably removed according to
The assembled surface heat exchanger is then denoted by reference sign 26 in
Another embodiment, which provides that the attachment face 25 of the retaining cassette 23 is provided by a preferably black non-woven material that is arranged in the retaining cassette, is not shown in
If the surface heat exchanger 26 has been assembled according to
To install the surface heat exchanger 26, the retaining cassette 23 may for example comprise installation faces, which are indicated in
In
With regard to
It is common to all the forms of arrangement that the surface heat exchangers 26 form what is known as a climate-control ceiling, which provides air conditioning of the room 28. If a coolant, for example cooled or cold water, flows through the tube systems or tube system, the climate-control ceiling can have a cooling effect. If, however, the room 28 is intended to be heated, a heated medium, for example hot water, can flow through the tube systems 13 of the surface heat exchangers 26.
Merely for the sake of clarity, it is noted with regard to
In this case, a typical surface heat exchanger 26 has a width b of approximately 60 cm, in particular of between 50 and 70 cm. The surface heat exchanger 26 may have identical dimensions in the other spatial direction or, alternatively, may typically also have dimensions that are approximately twice as long, i.e. a length of approximately 120 cm or in particular between 100 cm and 140 cm. Typically, in this case, precisely one (remainder of the) intermediate product 22 is arranged within a retaining cassette or an intermediate product is installed within said retaining cassette.
While the adhesive tape 31 according to
The large number of different layers alone suggests that the double-sided adhesive tape comprising the support according to
Even if this cannot be seen from
Lastly,
In the embodiment shown, this decorative layer 39 is a non-woven material, in particular an acoustic non-woven material, for example.
In this case, according to
The decorative layer 39 is adhered to the underside 19 of the surface heat exchanger 40, and specifically by the adhesive body 20 of the adhesive tape 32 indicated at one corner in
Normally, in this case, as shown in
As shown in this view of the underside 19 of the support plate 11 or the slightly modified surface heat exchanger 40 that is shown, as a whole, this is also an easy-to-handle, ready-to-use and transportable unit which is produced at the first site. Therefore, a surface heat exchanger 40 according to the invention can be transported to the intended site in a logistically simple manner.
The production of a surface heat exchanger 40 of this kind comprising a decorative layer essentially corresponds to the production as shown in
In order to install a surface heat exchanger 40 of this kind comprising a decorative layer 39, it may for example comprise installation means or may interact with room-side or ceiling-side installation means. It is typically not adhesively bonded into a retaining cassette, since the underside comprising the decorative layer 39 is intended to be visible.
| Number | Date | Country | Kind |
|---|---|---|---|
| 20 2021 100 591.2 | Feb 2021 | DE | national |
